To file your GST returns through BUSY, You need to follow these steps:
Step 1: Open the Administration menu and select Configuration.
Step 2: Choose Features / Options and then GST / VAT.
Step 3: Here, you can choose the Return Filling Freq. as Quarterly.
Step 4: Next, open the Display menu and select GST Reports.
Step 5: Choose GST Returns then GSTR-1 eReturn and select Report to be generated type such as Direct Upload, JSON, CSV File, As per Govt. Template or Plain Excel
Step 6: Enter the date range and press OK. You can also check for errors before proceeding.
Note: Please take latest backup of your data before making any changes.